| Microorganism |
MIC50
(μg/ml) |
MIC90
(μg/ml) |
Range
(μg/ml) |
Antimicrobial |
Reference |
| Citrobacter freundii (Inducible amp(C)) |
- |
- |
32 － ? |
Amoxicillin (Novamox, Amoxil)  |
652 |
| Citrobacter freundii (Inducible amp(C)) |
- |
- |
32 － ? |
Ampicillin (Omnipen) |
652 |
| Citrobacter freundii (Inducible amp(C)) |
- |
- |
64 － ? |
Cefoxitin (Mefoxin) |
652 |
| Citrobacter freundii (MTCC 1658) |
- |
- |
≤1 － ? |
Ciprofloxacin (Cipro, Ciproxin, Ciprobay) |
457 |
| Citrobacter freundii (MTCC 1658) |
- |
- |
≤1 － ? |
Gatifloxacin (Tequin) |
457 |
| Citrobacter freundii (MTCC 1658) |
- |
- |
≤1 － ? |
Norfloxacin (Noroxin) |
457 |
| Citrobacter freundii (MTCC 1658) |
- |
- |
≤1 － ? |
Sparfloxacin (AT-4140, Zagam) |
457 |
| Citrobacter freundii (NCIM 2488) |
- |
- |
30 － ? |
Biosurfactant |
922 |
| Citrobacter freundii (NCIM 2488) |
- |
- |
30 － ? |
Streptomycin |
922 |
| Citrobacter freundii (NCIM 2488) |
- |
- |
>1000 － ? |
Penicillin (Benzylpenicillin, Penicillin G, Bicillin C-R/L-A, Pfizerpen, Wycellin) |
922 |
| Citrobacter freundii (NIH 10018-68) |
- |
- |
0.2 － ? |
Ciprofloxacin (Cipro, Ciproxin, Ciprobay) |
963 |
| Citrobacter freundii (NIH 10018-68) |
- |
- |
0.2 － ? |
Tosufloxacin |
963 |
| Citrobacter freundii (NIH 10018-68) |
- |
- |
0.39 － ? |
Norfloxacin (Noroxin) |
963 |
| Citrobacter freundii (NIH 10018-68) |
- |
- |
0.78 － ? |
Ofloxacin (Floxin) |
963 |
| Citrobacter freundii (North America + ceftazidime-resistant) |
0.06 |
0.25 |
0.016 － >16 |
Meropenem (Merrem) |
284 |
| Citrobacter freundii (North America) |
- |
0.06 |
? － ? |
Meropenem (Merrem) |
284 |
| Citrobacter freundii (North America) |
- |
1 |
? － ? |
Imipenem |
284 |
| Citrobacter freundii (North America) |
- |
2 |
? － ? |
Ciprofloxacin (Cipro, Ciproxin, Ciprobay) |
284 |
| Citrobacter freundii (North America) |
>- |
>32 |
? － ? |
Ceftazidime (Ceptaz, Fortaz, Tanicef) |
284 |
| Citrobacter freundii (North America) |
- |
64 |
? － ? |
Cefotaxime (Cephotaxime, Claforan) |
284 |
| Citrobacter freundii (North America) |
- |
64 |
? － ? |
Zosyn |
284 |
| Citrobacter freundii (North America) |
>- |
>128 |
? － ? |
Piperacillin (Pipracil) |
284 |
| Citrobacter freundii (TN474) |
- |
- |
>100 － ? |
FNQ13 |
257 |
| Citrobacter freundii (TP) |
- |
- |
>16 － ? |
Erythromycin (E-mycin, Ery-tab, Benzamycin) |
220 |
| Citrobacter freundii (TP) |
- |
- |
>32 － ? |
Ampicillin (Omnipen) |
220 |